<template>
  <el-card shadow="never" class="border-0">
    <!-- 新增|刷新 -->
    <ListHeader @create="handleCreate" @refresh="getData" />

    <el-table :data="tableData" stripe style="width: 100%" v-loading="loading">
      <el-table-column label="优惠券名称" width="350">
        <template #default="{ row }">
          <div class="border border-dashed py-2 px-4 rounded" :class="row.statusText == '领取中' ? 'active' : 'inactive'">
            <h5 class="font-bold text-md">{{ row.name }}</h5>
            <small>{{ row.start_time }} ~ {{ row.end_time }}</small>
          </div>
        </template>
      </el-table-column>
      <el-table-column prop="statusText" label="状态" />
      <el-table-column label="优惠">
        <template #default="{ row }">
          {{ row.type == 0 ? "满减" : "折扣" }} {{ row.type == 0 ? ("￥" + row.value) : (row.value + "折") }}
        </template>
      </el-table-column>
      <el-table-column prop="total" label="发放数量" />
      <el-table-column prop="used" label="已使用" />
      <el-table-column label="操作" width="180" align="center">
        <template #default="scope">
          <el-button v-if="scope.row.statusText == '未开始'" type="primary" size="small" text
            @click="handleEdit(scope.row)">修改</el-button>

          <el-popconfirm v-if="scope.row.statusText != '领取中'" title="是否要删除该优惠券？" confirmButtonText="确认"
            cancelButtonText="取消" @confirm="handleDelete(scope.row.id)">
            <template #reference>
              <el-button text type="primary" size="small">删除</el-button>
            </template>
          </el-popconfirm>

          <el-popconfirm v-if="scope.row.statusText == '领取中'" title="是否要让该优惠券失效？" confirmButtonText="失效"
            cancelButtonText="取消" @confirm="handleStatusChange(0, scope.row)">
            <template #reference>
              <el-button type="danger" size="small">失效</el-button>
            </template>
          </el-popconfirm>

        </template>
      </el-table-column>
    </el-table>

    <div class="flex items-center justify-center mt-5">
      <el-pagination background layout="prev, pager ,next" :total="total" :current-page="currentPage" :page-size="limit"
        @current-change="getData" />
    </div>

    <FormDrawer ref="formDrawerRef" :title="drawerTitle" @submit="handleSubmit">
      <el-form :model="form" ref="formRef" :rules="rules" label-width="80px" :inline="false">
        <el-form-item label="优惠券名称" prop="name">
          <el-input v-model="form.name" placeholder="优惠券名称" style="width: 50%;"></el-input>
        </el-form-item>
        <el-form-item label="类型" prop="type">
          <el-radio-group v-model="form.type">
            <el-radio :label="0">满减</el-radio>
            <el-radio :label="1">折扣</el-radio>
          </el-radio-group>
        </el-form-item>
        <el-form-item label="面值" prop="value">
          <el-input v-model="form.value" placeholder="面值" style="width: 50%;">
            <template #append>{{ form.type ? "折" : "元" }}</template>
          </el-input>
        </el-form-item>
        <el-form-item label="发行量" prop="total">
          <el-input-number v-model="form.total" :min="0" :max="10000"></el-input-number>
        </el-form-item>
        <el-form-item label="最低使用价格" prop="min_price">
          <el-input v-model="form.min_price" placeholder="最低使用价格" type="number"></el-input>
        </el-form-item>
        <el-form-item label="排序" prop="order">
          <el-input-number v-model="form.order" :min="0" :max="1000"></el-input-number>
        </el-form-item>
        <el-form-item label="活动时间">
          <el-date-picker :editable="false" v-model="timerange" value-format="YYYY-MM-DD HH:mm:ss" type="datetimerange"
            range-separator="To" start-placeholder="开始时间" end-placeholder="结束时间" />
        </el-form-item>
        <el-form-item label="描述" prop="desc">
          <el-input v-model="form.desc" placeholder="描述" type="textarea" :rows="5"></el-input>
        </el-form-item>
      </el-form>
    </FormDrawer>

  </el-card>
</template>
<script setup>
  import { computed } from "vue"
  import ListHeader from "~/components/ListHeader.vue";
  import FormDrawer from "~/components/FormDrawer.vue";
  import {
    getCouponList,
    createCoupon,
    updateCoupon,
    deleteCoupon,
    updateCouponStatus
  } from "~/api/coupon"
  import { useInitTable, useInitForm } from '~/composables/useCommon.js'

  function formatStatus(row) {
    let s = "领取中"
    let start_time = (new Date(row.start_time)).getTime()
    let now = (new Date()).getTime()
    let end_time = (new Date(row.end_time)).getTime()
    if (start_time > now) {
      s = "未开始"
    } else if (end_time < now) {
      s = "已结束"
    } else if (row.status == 0) {
      s = "已失效"
    }
    return s
  }

  const {
    tableData,
    loading,
    currentPage,
    total,
    limit,
    getData,
    handleDelete
  } = useInitTable({
    getList: getCouponList,
    onGetListSuccess: (res) => {
      tableData.value = res.list.map(o => {
        // 转化优惠券状态
        o.statusText = formatStatus(o)
        return o
      })
      total.value = res.totalCount
    },
    delete: deleteCoupon,
    updateStatus: updateCouponStatus
  })

  const {
    formDrawerRef,
    formRef,
    form,
    rules,
    drawerTitle,
    handleSubmit,
    handleCreate,
    handleEdit
  } = useInitForm({
    form: {
      name: "",
      type: 0,
      value: 0,
      total: 100,
      min_price: 0,
      start_time: null,
      end_time: null,
      order: 50,
      desc: ""
    },
    getData,
    update: updateCoupon,
    create: createCoupon,
    beforeSubmit: (f) => {
      if (typeof f.start_time != "number") {
        f.start_time = (new Date(f.start_time)).getTime()
      }
      if (typeof f.end_time != "number") {
        f.end_time = (new Date(f.end_time)).getTime()
      }
      return f
    }
  })

  const timerange = computed({
    get() {
      return form.start_time && form.end_time ? [form.start_time, form.end_time] : []
    },
    set(val) {
      form.start_time = val[0]
      form.end_time = val[1]
    }
  })
</script>
<style scoped>
  .active {
    @apply border-rose-200 bg-rose-50 text-red-400;
  }

  .inactive {
    @apply border-gray-200 bg-gray-50 text-gray-400;
  }
</style>